Rails for fourdrinier paper-making machines



A. H. STANDLEY ET AL 1,709,754

RAILS FOR FOURDR-[NIR PAPER MAKING MACHINES Filed June 18, 1927 5 Sheets-Sheei 1 April 16, 1929.

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RAILS FOR FOURDRTNTFF PAPER MAKING MACHINES Filed Jun@ 18, 1927 5 Sheets-Sheet h. hmm rig NN April 16, 1929. A. H. sTANDLl-:Y ET A1. 1,709,754

RAILS FOR FOURDRINIER PAPER MAKING MACHINES Filed June 18, 1927 5 Sheets-Sheet 5 D 3D: Tin? /Z/ Vf L Patented Apr. 16, 1929.

UNITED STATES PATENT OFFICE.

ALBERT H. STANDLEY AND GEORGE D. KILBERRY, OF DOW'NI'NGTOWN, PENNSYL- VAN IA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO BELOIT IRON WORKS, 0F BELOIT, WISCONSIN, A CORPORATION OF WISCONSIN.

RAILS FOR FOURDRINIER PAPER-MAKING MACHINES.

Application filed June 18,

This invention relates to Fourdrinier pap er making machinery and especially to means for replacing the wire.

The object of the invention is to provide means for enabling the Fourdrinier part of a paper making machine to be quickly moved laterally to one side of the machine so as to permit the old wire to be removed and new Wire to be placed in position.

Another object of the invention is to provide telescoping rails upon which the Fourdrinier part of the paper making machine can be moved laterally through the space between the upper and lower portions of the wire.

Another object is to provide an efficient, strong and durable apparatus of the character specified which may be economically constructe'dl and operated.

Other objects and advantages will hereinafter appear.

The views of the drawings are Figure 1 is a diagrammatic plan of a portion of a paper making machine, showing the application of our invention thereto, the paper making machine being shown by broken lines.

Fig. 2 is a View illustrating the manner of placing one of the rails in position in the machine;

Fig. 3 is an elevation of the rail structure shown in Fig. 1, the Fourdrinier part being shown in its normal position;

Fig. 4 is a view similar to Fig. 3, showing the Fourdrinier part moved laterally on the rails, and the rails telescoped to one side of the main machine;

Fig. 5 is an elevation of one corner of the Fourdrinier part of the machine showing the relative position of one of the rails, the means for raising and lowering the corner of the machine being shown in section;

Fig. 6 is a view similar to Fig. 5,:the machine being shown resting on the rall;

Fig. 7 is an enlarged side elevation of one of the rails;

Fig. 8 is a longitudinal section as seen from the line 8-8 of Fig. 7;

Fig. 9 is a 'detail vertical section as seen from the line 9-9 of Fig. 1.

Fig. 10 is a detail vertical section taken on the line 10-10 of Fig. 8;

Fig. 11 is a detail horizontal section simi- 1927. serial Nn. 199,705.

lar to Fig. 8, but showing the rail sections extended.

Referring to the drawings, the invention is applicable to a paper making machine comprlsmg a head box 1 positioned to discharge the pulp on to one end of a wire 2.

The wire, which is in the form of an endless loop, passes around a breast roll 3 positloned adjacent to the head box 1, and around a suction or couch roll 4 located at the other end of the Fourdrinier part 5 of the machine.

Between the breast-roll 3 and the `couch roll 4, the wire is supported by rolls 6 of the Fourdrinier part 5 and also by a suction-box section 7.

The part 5 and the section 7 may be supported on pedestals 8 in such a manner as to he removably mounted in the machine.

The pedestals 8 may be of any desired construction. As shown, they have a hollow base in which is vertically mounted a screw 9.

The top of each screw 9 is fitted into a hollow threaded stem 10 slidably mounted in an upright tubular portion of the bracket. The design of the parts should be such, that as the screw 9 is rotated, the stem 1() will be either raised or lowered with respect to the pedestal.

Brackets 11 depend from the corners of the part 5 and the section 7.

The bottom of these brackets are formed with depressions 12 for receiving the upper ends of the stems 10.

A worm gear 13 is fitted on to the lower end oi the screw 9. This gear is driven by a gear 14 on a shaft 15 that is disposed at right angles to screw 9.A

The trames of the part 5 and the section 6 ot the machine have mounted thereon grooved wheels 16 which may be partially enclosed by a protective casing 17. These wheels are disposed transversely of the machine and are positioned on the outside thereof, as shown.

The structure shown by the broken lines in Fig. 1 and brieiy described above, is described and claimed in an application for Letters latcut filed in the United States Patent Olicc December 2, 1926, Serial No. 152.174, by George D. Kilbcrry, for Fourdrinier machine.

lleretofore, when replacing the wire of a Fourdrinier machine, it was the custom to dismantle the machine, part by part, in order to get at the wire.

By our invention, the Fourdrinier part 5 and suction-box section 7 are lowered onto rails and rolled 'laterally of the paper making machine so that the Wire may be completely exposed between the rolls around which it is guided. l

The rails are adapted to be placed in position when it is desired to replace the wire, one portion of the rails extending crossways through the machine, bein supported by U- sha ed brackets 18 forme as a part of the pe estals 8.

The rails are composed of two sections constructed so that one section may be telescoped within the other.

The sections of the rails may comprise an inner section formed from an I-beam 19, and an outer section 2O composed of a pair of channels so assembled as to provide a space for the I-beam 19.

The channels of the outer rail section 20 are connected together at intervals by means of U-shaped brackets 21 which are disposed underneath the channels and have their upwardly extendin sides riveted to the vertical webs of the c annels.

The channels are arranged with their vertical webs opposed to each other and their to and bottom flanges extending inwardly. Tige top flanges are narrower than the bottom flanges. Likewise, the bottom flange of the I-beam 19 is wider than the top flange thereof.

The disposition of the two rail sections is such that the to web of the I-beam provides a track for t e grooved portion of the wheels 16, while the top horizontal flanges of the channels provide a track for the peripheral anges of the wheels.

When the two rail sections are extended a relatively long track is provided so that when the art 5 and the section 7 of the machine are owered onto the inner rail sections and then rolled laterally thereof and the inner rail sections slid outwardly sulcient space will be left around the machine to permit access to the wire 2.

The forward end of the I-beam is fitted with brackets 22 in which are journaled rollers 23. These rollers are disposed on each vside of the vertical web of the I-beam and are located a slight distance below the top flange thereof so that they will, when the I- beam is being telescoped with respect to the channels, engage the under face of the top horizontal flanges of the channels in the manner clearly shown by Fig. 10.

The inner end of the outer rail section 20 carries a roller 24 which is journalled in brackets 25 riveted to the side of the channels. T'he disposition of the roller is such that it projects upwardly through the space between the lower horizontal flanges of the channels and engages the bottom face of the I-beam.

The rollers 23 and 24 function as antiformed so as to receive a crank (not showng Another sprocket 28 is journaled insi e of the rail section 20 between one of the channels thereof and the I-beam 19. This sprocket is positioned near the inner end of the outer rail section.

A chain 29 having one end secured to the forward portion of one of the brackets 22 is passed forwardly around the sprocket 27 then rearwardly to the sprocket 28 and then forwardly where its end is se'cured to the rear portion of the same bracket 22 as is the other end of the chain.

When it is desired to telescope one rail section with respect to the other, a crank, which has been applied to one of the trunnions of the sprocket 27 is turned. Movement in one direction will cause the I-beam 19to be slid outwardly from the channels 20, While a movement of the crank in the opposite direction 'will draw the I-beam inwardly of the channels.

For the purpose of limiting the movement of the I-beam 19 with respect to the outer rail section 20 use is made of a pin 30. This pin is disposed interiorly of the outer rail section bem located adjacent the inner end thereof. Wen the I-beam 19 is extended to the position illustrated by Figs. 1 and 3, the end of one of the brackets 22 will abut against the pin and thereby prevent further outward movement of the I-beam with respect to the outer rail section 20.

Assumin that it is desired to re lacea wire in a ourdrinier machine and t e part 5 and section 7 of such machine are so constructed as to be removable therefrom, stands 31 are set at desired intervals on the floor. These stands may be of an desired construction, and in the form o the invention illustrated they are adapted to be so positioned as to receive and sup rt the outer ends of the rail sections. Xs) shown, the stands 31 may have a flat base to provide a rigid support.

With each rail section telescoped together the inner ends thereof are placed in the brackets 18 of the outer pedestals 8 and then the I-beam 19 is slid outwardly of the rail section 20. This o ration Will project the I-beam 19 across e Fourdrinier machine and its extreme end can be inserted through CTI the bracket 18 of the pedestal 8 on the other side of the machine. The method of placing the rail sections in position is clearly shown by Figs. 2 and 3.

After the rails have been placed in the position illustrated by Fig. 3, the screws 9 in the pedestals 8 are lowered until the wheels 16 of the part 5 and the suction-box section 7 of the machine rest on the rails. These parts of the machine are then rolled to the end of the rails and the I-beams 19 telescolpcd into the outer rail sections 20.

stop 32 is mounted near the end of the outer rail section 20, while a similar stop 33 is mounted at the extreme end of the I-beam 19. These stops serve as means for preventing the wheels 16 from ralling off the end of the rail sections.

In order to guide the wheels 16 on the top of the outer rail sections 20, the outer face of each of the channels has riveted thereto an upstanding bar 34. These bars provide a channel on top of the rail sections, which channel has a width sufiicient to provide a defined track for the wheels 16.

-For ythe purpose of retaining the two rail sections in a predetermined position the hub of the sprocket 27 has teeth 35, which are engaged by a locking pawl 36 pivoted to one side of the outer rail section 20. When the sprocket 27 is. to be rotated, the pawl can be thrown brackward out of its engagement with one of the teeth 35, and when the rail sections have been moved relatively to each other the desired amount the pawl can be thrown over into engagement with one of the teeth and thus prevent further relative movement of the parts.

The invention set forth herein is, of course, susceptible of various modifications and ada tations.

T e invention claimed is 1. In a Fourdrinier machine having a removable table roll section and an independently removable suction box section, the combination with means for supporting the sections, of means for rolling said sections laterally of the machine, 'said means including telescoping rail sections.

2. The combination with a removable Fourdrinier structure of telescoping rails for bodily moving said structure laterally of the machine.

3. In a Fourdrinier machine, the combination with a frame having wheels depending therefrom, of rail sections disposed beneath said wheels, said rail sections includin a pair of spaced channels and an I-beam s idably mounted therebetween.

4. In a Fourdrinier machine, the combination with a frame detachably mounted on pedestals, of rail sections disposed transversely of the frame, and carried b said pedestals, said frame having wheels or engaging said rail sections, and said rail sections including a pair of space channels and an I-beam telescopin therein.

5. Telescoping rai sections for Fourdrinier machines comprising an outer section composed of channels, and an inner section in the form of an I-beam.

6. Rails for Fourdrinier machines comprising an outer section composed of channels, and an inner section inthe form of an I-beam slidabl mounted to telescope in and out of the sai outer section.

7. Rails for Fourdrinier machines comprising an outer section and an inner section slidably mounted with respect to said outer sections, and means connecting the two sections for telescoping one with respect to the other.

8. Rails for F ourdrinier machine comprising an outer section and an inner section slidably mounted with respect to said outer section, and anti-friction rollers carried by both sections.

ALBERT H. STANDLEY. GEORGE l). KILBERRY. 

